It appears to me that the `expanded/collapsed` part of the names got switched around, since I'd expect the following convention: - `v` == expanded - `>` == collapsed
149 B
18x18px
149 B
18x18px
![](/Sakurai/pdf.js/raw/commit/7b9dfc0195e5501357ffb8832d1229e73ca2cc1c/web/images/treeitem-collapsed@2x.png)